/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:33:47,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:33:47,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:33:48,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:33:48,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:33:48,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:33:48,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:33:48,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:33:48,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:33:48,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:33:48,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:33:48,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:33:48,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:33:48,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:33:48,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:33:48,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:33:48,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:33:48,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:33:48,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:33:48,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:33:48,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:33:48,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:33:48,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:33:48,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:33:48,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:33:48,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:33:48,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:33:48,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:33:48,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:33:48,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:33:48,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:33:48,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:33:48,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:33:48,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:33:48,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:33:48,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:33:48,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:33:48,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:33:48,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:33:48,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:33:48,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:33:48,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:33:48,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:33:48,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:33:48,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:33:48,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:33:48,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:33:48,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:33:48,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:33:48,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:33:48,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:33:48,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:33:48,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:33:48,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:33:48,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:33:48,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:33:48,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:33:48,127 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:33:48,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:33:48,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:33:48,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:33:48,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:33:48,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:33:48,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:33:48,129 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:33:48,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:33:48,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:33:48,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:33:48,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:33:48,563 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:33:48,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-10-23 20:33:48,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01e06720d/8599d79420e14b9e823eae4913f7d5c4/FLAG7f57626fe [2020-10-23 20:33:49,370 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:33:49,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-10-23 20:33:49,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01e06720d/8599d79420e14b9e823eae4913f7d5c4/FLAG7f57626fe [2020-10-23 20:33:49,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01e06720d/8599d79420e14b9e823eae4913f7d5c4 [2020-10-23 20:33:49,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:33:49,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:33:49,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:33:49,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:33:49,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:33:49,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:33:49" (1/1) ... [2020-10-23 20:33:49,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28292644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:49, skipping insertion in model container [2020-10-23 20:33:49,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:33:49" (1/1) ... [2020-10-23 20:33:49,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:33:49,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:33:50,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:33:50,115 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:33:50,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:33:50,295 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:33:50,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50 WrapperNode [2020-10-23 20:33:50,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:33:50,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:33:50,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:33:50,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:33:50,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... [2020-10-23 20:33:50,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:33:50,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:33:50,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:33:50,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:33:50,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:33:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:33:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:33:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:33:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 20:33:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-10-23 20:33:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:33:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-10-23 20:33:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-10-23 20:33:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:33:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:33:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 20:33:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 20:33:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 20:33:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 20:33:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 20:33:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 20:33:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 20:33:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 20:33:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 20:33:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 20:33:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 20:33:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 20:33:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:33:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 20:33:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 20:33:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 20:33:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 20:33:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 20:33:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 20:33:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 20:33:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-10-23 20:33:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-10-23 20:33:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-10-23 20:33:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-10-23 20:33:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-10-23 20:33:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:33:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:33:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:33:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:33:51,124 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:33:51,124 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:33:51,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:33:51 BoogieIcfgContainer [2020-10-23 20:33:51,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:33:51,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:33:51,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:33:51,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:33:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:33:49" (1/3) ... [2020-10-23 20:33:51,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415fe8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:33:51, skipping insertion in model container [2020-10-23 20:33:51,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:50" (2/3) ... [2020-10-23 20:33:51,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415fe8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:33:51, skipping insertion in model container [2020-10-23 20:33:51,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:33:51" (3/3) ... [2020-10-23 20:33:51,137 INFO L111 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-10-23 20:33:51,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:33:51,158 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:33:51,175 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:33:51,201 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:33:51,201 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:33:51,202 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:33:51,202 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:33:51,202 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:33:51,202 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:33:51,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:33:51,203 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:33:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-10-23 20:33:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-23 20:33:51,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:33:51,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:33:51,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:33:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:33:51,246 INFO L82 PathProgramCache]: Analyzing trace with hash -369315151, now seen corresponding path program 1 times [2020-10-23 20:33:51,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:33:51,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824030374] [2020-10-23 20:33:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:33:51,358 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:33:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:33:51,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:33:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:33:51,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:33:51,637 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:33:51,637 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:33:51,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:33:51,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:33:51 BoogieIcfgContainer [2020-10-23 20:33:51,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:33:51,665 INFO L168 Benchmark]: Toolchain (without parser) took 2028.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 71.7 MB in the end (delta: 55.0 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:51,666 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:33:51,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 100.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:51,668 INFO L168 Benchmark]: Boogie Preprocessor took 128.56 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 133.6 MB in the end (delta: -33.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:51,669 INFO L168 Benchmark]: RCFGBuilder took 699.07 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 88.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:51,670 INFO L168 Benchmark]: TraceAbstraction took 533.70 ms. Allocated memory is still 151.0 MB. Free memory was 88.0 MB in the beginning and 71.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:51,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 653.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 100.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.56 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 133.6 MB in the end (delta: -33.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 699.07 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 88.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 533.70 ms. Allocated memory is still 151.0 MB. Free memory was 88.0 MB in the beginning and 71.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1160. Possible FailurePath: [L1154] int globalState = 0; [L1160] CALL, EXPR l_open("unknown",00) [L1172] int fd = open(file,flags); [L1173] COND FALSE !(fd>0) [L1174] return fd; [L1160] RET, EXPR l_open("unknown",00) [L1160] int file = l_open("unknown",00); [L1161] void* cbuf = (void*) malloc(sizeof(char)*100); [L1162] CALL l_read(file,cbuf,99) [L1167] (globalState == 1) ? (0) : __blast_assert () [L1167] CALL __blast_assert () [L962] CALL reach_error() [L3] __assert_fail("0", "fo_test.i", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...